I use BitWarden too. OS , device and browser agnostic is a win

But I imagine the vast amount of people will use whatever their platform is pushing, so Apple Google or Microsoft. And in 5 years time “3rd party passkeys” are not “secure enough” and blocked by the OS. (Ok that’s a bit tinfoil hat, but Google’s recent Android app developer verification scheme is fresh in mind)

The biggest disadvantage:

Disadvantages of Passkeys

Ecosystem Lock-In – Passkey pairs are synced through each vendor’s respective clouds via end-to-end encryption to facilitate seamless access multiple devices.

More eggs in the American megacorp basket for more people, yay